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प्रश्न
Tick the most appropriate answer.
Physical changes are
पर्याय
permanent
periodic
temporary
irreversible
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उत्तर
temporary
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संबंधित प्रश्न
Fill in the blank.
Heat is .................... by a gas during the process of condensation.
Write short answer.
Give two examples of periodic changes
State whether the following is physical or chemical changes.
growing of a piglet into a pig —
Which of the following are physical changes and which are chemical changes ?
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Periodic and non-periodic change
Differentiate between a physical change and a chemical change with reference to – Nature of change is temporary and reversible or permanent and irreversible.
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Select the chemical changes from the following list of changes
Vaporisation of water into water vapour.
Select the chemical changes from the following list of changes
Rotting of eggs.
Water is known as a universal solvent. Why?
